[Bug c/55651] New: gcc hangs when "-Wp," is passed on the command line

[steve.ulrich at broadcom dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55651



             Bug #: 55651

           Summary: gcc hangs when "-Wp," is passed on the command line

    Classification: Unclassified

           Product: gcc

           Version: 4.7.2

            Status: UNCONFIRMED

          Severity: normal

          Priority: P3

         Component: c

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: steve.ulr...@broadcom.com





If a user neglects to add the required parameter at the end of the "-Wp,"

prefix and just lists "-Wp," on the command line, gcc hangs.  To reproduce,

issue the following commands:



$ cp /dev/null testfile.c

$ gcc -Wp, -c testfile.c



This has been reproduced on a GCC cross compiler for PowerPC, and also for ARM,

so is believed to be reproducible regardless of the target CPU architecture.



"gcc -v" output:



Using built-in specs.

COLLECT_GCC=/projects/nwsoft-toolchains/brl/brl_2.1/brl_2.1.0/northstar/usr/bin/arm-broadcom-linux-uclibcgnueabi-gcc

COLLECT_LTO_WRAPPER=/projects/nwsoft-toolchains/brl/brl_2.1/brl_2.1.0/northstar/usr/libexec/gcc/arm-broadcom-linux-uclibcgnueabi/4.7.2/lto-wrapper

Target: arm-broadcom-linux-uclibcgnueabi

Configured with:

/projects/broadcom-linux/Northstar/tools/output/toolchain/gcc-4.7.2/configure

--prefix=/projects/nwsoft-toolchains/brl/brl_2.1/brl_2.1.0/northstar/usr

--build=x86_64-unknown-linux-gnu --host=x86_64-unknown-linux-gnu

--target=arm-broadcom-linux-uclibcgnueabi --enable-languages=c,c++

--with-sysroot=/projects/nwsoft-toolchains/brl/brl_2.1/brl_2.1.0/northstar/usr/arm-broadcom-linux-uclibcgnueabi/sysroot

--with-build-time-tools=/projects/nwsoft-toolchains/brl/brl_2.1/brl_2.1.0/northstar/usr/arm-broadcom-linux-uclibcgnueabi/bin

--disable-__cxa_atexit --enable-target-optspace --disable-libgomp --with-gnu-ld

--disable-libssp --disable-multilib --enable-tls --enable-shared

--with-gmp=/projects/nwsoft-toolchains/brl/brl_2.1/brl_2.1.0/northstar/usr

--with-mpfr=/projects/nwsoft-toolchains/brl/brl_2.1/brl_2.1.0/northstar/usr

--with-mpc=/projects/nwsoft-toolchains/brl/brl_2.1/brl_2.1.0/northstar/usr

--disable-nls --enable-threads --disable-decimal-float --with-float=soft

--with-abi=aapcs-linux --with-arch=armv7-a --with-tune=cortex-a9

--with-pkgversion='Buildroot 2012.11-git-00621-gc13e2bc-dirty'

--with-bugurl=http://bugs.buildroot.net/ --with-pkgversion='Broadcom Linux

v2.1'

Thread model: posix

gcc version 4.7.2